Final answer:
A stop sign is a traffic sign used to control and regulate the flow of vehicles at an intersection. Its meaning is straightforward and universal - it indicates that drivers approaching the sign must come to a complete stop before proceeding.
Step-by-step explanation:
A stop sign is a traffic sign used to control and regulate the flow of vehicles at an intersection. Its meaning is straightforward and universal - it indicates that drivers approaching the sign must come to a complete stop before proceeding. Stop signs are used to prevent accidents and ensure the safety of both drivers and pedestrians.